[release-notes/gnome-3-20] add screenshot for the Nibbles game

[Andreas Nilsson <andreasn src gnome org>]

commit 903bedf86fbb340c40edaabb56e55b9847404a84
Author: Andreas Nilsson <anilsson redhat com>
Date:   Mon Mar 14 12:31:51 2016 +0100

    add screenshot for the Nibbles game

 help/C/figures/nibbles.png |  Bin 0 -> 328316 bytes
 help/C/more.page           |    2 +-
 help/Makefile.am           |    3 ++-
 3 files changed, 3 insertions(+), 2 deletions(-)
---
diff --git a/help/C/figures/nibbles.png b/help/C/figures/nibbles.png
new file mode 100644
index 0000000..29dc4bd
Binary files /dev/null and b/help/C/figures/nibbles.png differ
diff --git a/help/C/more.page b/help/C/more.page
index 1f41f3c..182246a 100644
--- a/help/C/more.page
+++ b/help/C/more.page
@@ -138,7 +138,7 @@
 
   <section id="nibbles">
     <title>Nibbles</title>
-    <media type="image" src="figures/placeholder.png"/>
+    <media type="image" src="figures/nibbles.png"/>
     <p>Nibbles has undergone a major transformation for this release! The new
     version has updated artwork and a fun, retro arcade style, including little
     worm icons to indicate how many remaining lives you have. The addition of a
diff --git a/help/Makefile.am b/help/Makefile.am
index 8aaa20e..2b0d880 100644
--- a/help/Makefile.am
+++ b/help/Makefile.am
@@ -18,6 +18,7 @@ HELP_MEDIA = \
  figures/maps.png \
  figures/mouse-and-touchpad.png \
  figures/web.png \
- figures/dconf-editor.png
+ figures/dconf-editor.png \
+ figures/nibbles.png
 
 HELP_LINGUAS = cs gl